C++ impact and status on Exercism

C++

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C++ Track Management

This page provides the Exercism community with the information and tools needed to manage the C++ track.

Students

138,110

Submissions

1,790,040

Mentoring Discussions

13,072

The C++ track needs attention ⚠️

Building

C++ syllabus

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Help create the track syllabus: is a set of concepts and learning exercises put together to teach foundational elements of the programming language.

Next goal: Create a complete syllabus with at least 20 concepts. Find out more.

19 concepts being taught

Includes

7,566 learnt

Strings

7,566 learnt

Basics

13,865 learnt

Numbers

5,597 learnt

Namespaces

8,992 learnt

Booleans

9,320 learnt

Comparisons

4,771 learnt

If Statements

4,771 learnt

Arrays and Vectors

2,806 learnt

Loops

3,908 learnt

Classes

3,316 learnt

References

2,190 learnt

Enumerations

2,446 learnt

Switch Statements

2,446 learnt

Headers

1,581 learnt

Functions

1,078 learnt

Auto

145 learnt

Smart Pointers

145 learnt

Pointers

389 learnt

15 active learning exercises

Started

Attempts

Completions

Mentoring requests

Log Levels

10,892

79,673 (avg. 7.3)

7,566 (69.5%)

208 (1.9%)

Lasagna

19,217

80,267 (avg. 4.2)

13,865 (72.1%)

230 (1.2%)

Freelancer Rates

6,366

54,949 (avg. 8.6)

5,597 (87.9%)

70 (1.1%)

Last Will

10,856

61,336 (avg. 5.6)

8,992 (82.8%)

119 (1.1%)

Pacman Rules

10,240

55,071 (avg. 5.4)

9,320 (91.0%)

102 (1.0%)

Vehicle Purchase

5,042

32,215 (avg. 6.4)

4,771 (94.6%)

40 (0.8%)

Making the Grade

3,409

56,996 (avg. 16.7)

2,806 (82.3%)

91 (2.7%)

Interest is interesting

4,224

30,821 (avg. 7.3)

3,908 (92.5%)

41 (1.0%)

Ellen's Alien Game

3,622

26,865 (avg. 7.4)

3,316 (91.6%)

46 (1.3%)

Election Day

2,425

26,661 (avg. 11.0)

2,190 (90.3%)

41 (1.7%)

Troll the Trolls

2,720

25,895 (avg. 9.5)

2,446 (89.9%)

59 (2.2%)

Doctor Data

2,003

28,598 (avg. 14.3)

1,581 (78.9%)

41 (2.0%)

lasagna-master

1,288

17,585 (avg. 13.7)

1,078 (83.7%)

15 (1.2%)

Power of Troy

203

2,620 (avg. 12.9)

145 (71.4%)

1 (0.5%)

Speedywagon Foundation

484

4,575 (avg. 9.5)

389 (80.4%)

5 (1.0%)

Practice Exercises

Learn More

Practice Exercises are exercises designed to allow students to solve an arbitrary problem, with the aim of them making use of the concepts they have learned so far.

Synced primary repo: 6f5995990491c2dbbbbe1e5ea1aae0eeb53ff187 (Updates should be instant)

Next goal: Implement 136 practice exercises. Find out more.

82 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

102,772

274,468 (avg. 2.7)

52,973 (51.5%)

12 (0.0%)

Leap

24,082

100,641 (avg. 4.2)

12,631 (52.4%)

2,531 (10.5%)

Reverse String

13,742

89,625 (avg. 6.5)

8,841 (64.3%)

1,512 (11.0%)

Space Age

8,735

67,949 (avg. 7.8)

4,295 (49.2%)

1,144 (13.1%)

Triangle

5,909

42,494 (avg. 7.2)

3,555 (60.2%)

773 (13.1%)

Grains

4,090

28,191 (avg. 6.9)

3,275 (80.1%)

603 (14.7%)

Raindrops

7,254

50,435 (avg. 7.0)

5,897 (81.3%)

650 (9.0%)

Pangram

3,319

24,047 (avg. 7.2)

2,646 (79.7%)

494 (14.9%)

Two Fer

3,075

12,467 (avg. 4.1)

2,556 (83.1%)

87 (2.8%)

Grade School

3,369

31,331 (avg. 9.3)

2,184 (64.8%)

233 (6.9%)

Hamming

4,875

14,337 (avg. 2.9)

3,950 (81.0%)

366 (7.5%)

Nucleotide Count

3,318

17,384 (avg. 5.2)

2,455 (74.0%)

282 (8.5%)

RNA Transcription

2,604

13,314 (avg. 5.1)

2,140 (82.2%)

173 (6.6%)

Collatz Conjecture

2,171

10,052 (avg. 4.6)

1,829 (84.2%)

55 (2.5%)

Difference of Squares

3,732

12,265 (avg. 3.3)

3,261 (87.4%)

182 (4.9%)

Nth Prime

2,433

16,656 (avg. 6.8)

1,630 (67.0%)

139 (5.7%)

Queen Attack

2,095

16,809 (avg. 8.0)

1,374 (65.6%)

116 (5.5%)

Sieve

2,025

11,801 (avg. 5.8)

1,624 (80.2%)

133 (6.6%)

Say

1,717

15,123 (avg. 8.8)

943 (54.9%)

123 (7.2%)

Gigasecond

2,969

6,233 (avg. 2.1)

2,029 (68.3%)

256 (8.6%)

Secret Handshake

1,409

7,413 (avg. 5.3)

1,150 (81.6%)

51 (3.6%)

Allergies

2,416

17,728 (avg. 7.3)

1,564 (64.7%)

95 (3.9%)

Protein Translation

1,531

10,138 (avg. 6.6)

1,271 (83.0%)

54 (3.5%)

Sum of Multiples

1,747

6,659 (avg. 3.8)

1,344 (76.9%)

73 (4.2%)

Prime Factors

1,549

6,264 (avg. 4.0)

1,254 (81.0%)

51 (3.3%)

Robot Name

1,664

11,497 (avg. 6.9)

1,152 (69.2%)

117 (7.0%)

Clock

1,230

7,381 (avg. 6.0)

704 (57.2%)

54 (4.4%)

Meetup

956

3,496 (avg. 3.7)

529 (55.3%)

25 (2.6%)

Beer Song

1,027

6,410 (avg. 6.2)

777 (75.7%)

35 (3.4%)

Atbash Cipher

2,163

34,553 (avg. 16.0)

1,612 (74.5%)

105 (4.9%)

Trinary

1,915

13,419 (avg. 7.0)

1,667 (87.0%)

42 (2.2%)

Binary Search

1,250

9,137 (avg. 7.3)

851 (68.1%)

42 (3.4%)

Phone Number

1,136

5,853 (avg. 5.2)

814 (71.7%)

42 (3.7%)

Series

867

3,711 (avg. 4.3)

676 (78.0%)

24 (2.8%)

Complex Numbers

1,138

6,613 (avg. 5.8)

702 (61.7%)

26 (2.3%)

Food Chain

1,000

3,032 (avg. 3.0)

723 (72.3%)

28 (2.8%)

Roman Numerals

917

3,568 (avg. 3.9)

683 (74.5%)

24 (2.6%)

Bob

3,095

22,125 (avg. 7.1)

2,498 (80.7%)

270 (8.7%)

Word Count

1,474

5,929 (avg. 4.0)

1,111 (75.4%)

92 (6.2%)

Circular Buffer

920

7,082 (avg. 7.7)

539 (58.6%)

45 (4.9%)

Crypto Square

762

5,630 (avg. 7.4)

508 (66.7%)

22 (2.9%)

ETL

1,436

3,494 (avg. 2.4)

1,166 (81.2%)

43 (3.0%)

Matching Brackets

1,245

8,007 (avg. 6.4)

994 (79.8%)

37 (3.0%)

Anagram

1,613

4,907 (avg. 3.0)

1,253 (77.7%)

97 (6.0%)

Binary Search Tree

1,154

5,840 (avg. 5.1)

372 (32.2%)

44 (3.8%)

Luhn

1,552

16,754 (avg. 10.8)

1,257 (81.0%)

61 (3.9%)

Acronym

1,008

4,393 (avg. 4.4)

773 (76.7%)

30 (3.0%)

Armstrong Numbers

1,546

7,172 (avg. 4.6)

1,346 (87.1%)

34 (2.2%)

Binary

1,283

4,835 (avg. 3.8)

1,024 (79.8%)

84 (6.5%)

Hexadecimal

1,500

7,289 (avg. 4.9)

1,271 (84.7%)

79 (5.3%)

Isogram

2,492

4,786 (avg. 1.9)

1,594 (64.0%)

100 (4.0%)

Pascal's Triangle

887

3,199 (avg. 3.6)

680 (76.7%)

25 (2.8%)

Perfect Numbers

375

2,378 (avg. 6.3)

315 (84.0%)

6 (1.6%)

Scrabble Score

1,227

3,532 (avg. 2.9)

941 (76.7%)

90 (7.3%)

All Your Base

879

5,153 (avg. 5.9)

592 (67.3%)

48 (5.5%)

Robot Simulator

1,272

5,106 (avg. 4.0)

721 (56.7%)

54 (4.2%)

Bank Account

644

2,809 (avg. 4.4)

312 (48.4%)

38 (5.9%)

Darts

2,085

13,607 (avg. 6.5)

1,842 (88.3%)

30 (1.4%)

Largest Series Product

352

2,426 (avg. 6.9)

270 (76.7%)

10 (2.8%)

Isbn Verifier

500

3,574 (avg. 7.1)

383 (76.6%)

13 (2.6%)

Linked List

209

1,609 (avg. 7.7)

119 (56.9%)

8 (3.8%)

Simple linked list

642

5,149 (avg. 8.0)

403 (62.8%)

19 (3.0%)

High Scores

591

4,980 (avg. 8.4)

527 (89.2%)

12 (2.0%)

Eliud's Eggs

700

2,829 (avg. 4.0)

634 (90.6%)

11 (1.6%)

Diamond

198

1,415 (avg. 7.1)

150 (75.8%)

4 (2.0%)

Run-Length Encoding

214

2,282 (avg. 10.7)

168 (78.5%)

5 (2.3%)

Rotational Cipher

720

5,320 (avg. 7.4)

638 (88.6%)

12 (1.7%)

Resistor Color

230

1,261 (avg. 5.5)

184 (80.0%)

4 (1.7%)

Resistor Color Duo

207

974 (avg. 4.7)

169 (81.6%)

2 (1.0%)

Minesweeper

179

1,058 (avg. 5.9)

117 (65.4%)

2 (1.1%)

Sublist

142

1,136 (avg. 8.0)

87 (61.3%)

3 (2.1%)

Zebra Puzzle

131

574 (avg. 4.4)

55 (42.0%)

5 (3.8%)

List Ops

172

1,947 (avg. 11.3)

99 (57.6%)

4 (2.3%)

Knapsack

126

1,048 (avg. 8.3)

75 (59.5%)

2 (1.6%)

Two Bucket

124

583 (avg. 4.7)

63 (50.8%)

2 (1.6%)

Yacht

159

1,368 (avg. 8.6)

112 (70.4%)

0 (0.0%)

Kindergarten Garden

506

4,262 (avg. 8.4)

374 (73.9%)

12 (2.4%)

D&D Character

229

1,601 (avg. 7.0)

143 (62.4%)

1 (0.4%)

Spiral Matrix

141

903 (avg. 6.4)

86 (61.0%)

4 (2.8%)

Parallel Letter Frequency

175

800 (avg. 4.6)

93 (53.1%)

5 (2.9%)

Pig Latin

160

1,418 (avg. 8.9)

80 (50.0%)

4 (2.5%)

Rail Fence Cipher

106

875 (avg. 8.3)

61 (57.5%)

2 (1.9%)

54 unimplemented practice exercises

Affine Cipher

Alphametics

Baffling Birthdays

Book Store

Bottle Song

Bowling

Change

Connect

Conway's Game of Life

Custom Set

Dominoes

DOT DSL

Error Handling

Flatten Array

Forth

Go Counting

Grep

Hangman

House

Killer Sudoku Helper

Ledger

Lens Person

Markdown

Matrix

Micro Blog

OCR Numbers

PaaS I/O

Palindrome Products

Poker

POV

Proverb

Pythagorean Triplet

Rational Numbers

React

Rectangles

Relative Distance

Resistor Color Trio

REST API

Saddle Points

Satellite

SGF Parsing

Simple Cipher

Square Root

State of Tic-Tac-Toe

Strain

Swift Scheduling

Tournament

Transpose

Tree Building

Twelve Days

Variable Length Quantity

Word Search

Wordy

Zipper

1 foregone practice exercise

Point Mutations

View data

Programming Tags

Learn More

Help manage the tags used to group, filter and recommend solutions, approaches and articles.

0 tags

Test Runner

Learn More

Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Current version: fa924a0b0728c894eacbeabe6b9656ec62416b66 (Takes up to 10 mins to deploy)

Total Test Runner Runs

1,751,833

Test Run Pass Rate

16.4% (288032)

Test Run Fail Rate

24.5% (428435)

Test Run Error Rate

59.1% (1035366)

Representer

Learn More

Build a Representer: a bit of code that has the single responsibility of taking a solution and returning a normalized representation of it.

Current version: 29eab0a802586f7bc346f598a1ca98a74deb7547 (Takes up to 10 mins to deploy)

Total Representer Runs

308,889

Total Representation Comments Made

52,057

Feedback Given Frequency

16.9%

Analyzer

Learn More

Build an Analyzer for C++: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.

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The C++ track needs attention ⚠️

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